23859

Appears in sequences

• Numerators of continued fraction convergents to sqrt(75).at n=9A041132
• a(n) = 4*a(n-1) - a(n-2) for n>1, a(0)=3, a(1)=9.at n=7A082841
• a(n) = 4*a(n-2) - a(n-4).at n=14A083336
• (1/2)*number of regular tetrahedra that can be formed using the points in an (n+1) X (n+1) X (n+1) lattice cube.at n=13A103158
• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+281)^2 = y^2.at n=8A129626
• a(n) = 729*n - 198.at n=32A156772
• a(n) = A215723(n) / 2^(n-1).at n=14A215897
• a(n) = (prime(1+n)*prime(n)) + prime(n) + 1.at n=35A286624
• Diagonals of a Euclidian solid such that there exists a Pythagorean quadruple d^2=a^2+b^2+c^2 that is more cube-like than any prior value of d.at n=10A375098
• Number of nonequivalent essentially series series-parallel networks with longest path at most n edges and largest cut set of at most 2 edges.at n=13A391486